METHOD AND DEVICE FOR IN-FRAME Prediction MODE CODING FOR THE IMAGE PREDICTION BLOCK AND METHOD AND DEVICE FOR IN-FRAME Prediction MODE FOR IMAGE Prediction Block

摘要

1. A method for decoding an intra-frame prediction mode of an image, comprising: obtaining information about an intra-frame prediction mode of a prediction block of a first image component of an image from a bit stream; when the intra-frame prediction mode of a prediction block of a first image component is the same as one of a predetermined intra-frame mode predictions included in the second group of possible intra prediction mode options, which can be applied in Ocean prediction block of the second image component, the second group recovery options intra prediction mode, to eliminate redundancy of the intra prediction mode, which is included in the second group of options and the intra prediction mode is the same as the intra prediction mode of a certain block of the first prediction image component; identifying the intra prediction mode of the prediction block of the second image component based on the reconstructed second group of possible intra prediction mode options. 2. The method of claim 1, wherein the restoration comprises restoring a second group of possible intra prediction mode options by replacing an intra prediction mode included in a second group of possible intra prediction mode options, which is the same as a specific intra prediction mode of the prediction block of the first image component, to another prediction mode, excellent �